Calculate the massper cent of different elements present in sodium sul

1.	Calculate the massper cent of different elements present in sodium sulphate (Na_(2)SO_(4)).
Answer» Solution :Mass PRECENT `= ("Mass of solute")/("Mass of solution")xx100` Molecular mass of `Na_(2)SO_(4)=(2xx22.9g)+32.06+(4xx16.00)=142.04g` % of NA `=(45.98xx100)/(142.04g)=32.37%` % of S `=(32.06xx100)/(142.04)=22.57%` % of O `= (64xx100)/(142.04)=45.06%`

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